Re: multiline font lock / differences between Emacs 23 and 24

[Stefan Monnier]

> I use Emacs's LaTeX mode ("defined in `tex-mode.el'" according to M-x
> describe-mode), not AUCTeX (I don't really know what AUCTeX is, in fact,
> except that I'm not using it).  I am using Emacs 24 (as provided by
> Ubuntu 14.04 LTS under version number 24.3+1-2ubuntu1).
[...]
> U) \cap D$.  Now if $F \subseteq X$ is closed, we have $\intr_D(F\cap
> D) = D \setminus \clos_D(D\setminus F) = D \setminus
> (\clos_X(D\setminus F) \cap D) = (X \setminus \clos_X(D\setminus F))
> \cap D = (\intr_X F) \cap D$.

The highlighting rule for $...$ has been changed in Emacs-24 so that it
is recognized less often, to try and avoid the more problematic
false-positives where "the whole buffer" ended up highlighted as math
because the closing $ was hidden in some macro somewhere.

> Is this a regression?

Yes.  Partly done on purpose, tho.  Feel free to file a bug-report,
although offhand, I can't think of a good way fix both cases at the
same time.


        Stefan